qgsgeorefvalidators.cpp

/***************************************************************************
     qgsgeorefvalidators.cpp
     --------------------------------------
    Date                 : 14-Feb-2010
    Copyright            : (C) 2010 by Jack R, Maxim Dubinin (GIS-Lab)
    Email                : sim@gis-lab.info
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
/* $Id$ */

#include <QStringList>

#include "qgsgeorefvalidators.h"

QgsDMSAndDDValidator::QgsDMSAndDDValidator(QObject *parent)
  : QValidator(parent)
{
}

QValidator::State QgsDMSAndDDValidator::validate(QString &input, int &pos) const
{
  Q_UNUSED(pos);

  QRegExp rx("-?\\d*");
  if (rx.exactMatch(input))
  {
    return Acceptable;
  }

  if (input.length() == 4)
  {
    if (input.toInt() > 179)
      return Invalid;
  }
  else if (input.startsWith("-") && input.length() == 5)
  {
    if (input.toInt() <= -180)
      return Invalid;
  }

  if (!input.contains(" "))
  {
    rx.setPattern("-?\\d*(\\.|,)(\\d+)?");
    if (rx.exactMatch(input))
      return Acceptable;
  }
  else
  {
    rx.setPattern("-?\\d{1,3}\\s(\\d{1,2}(\\s(\\d{1,2}((\\.|,)(\\d{1,3})?)?)?)?)?");
    if (rx.exactMatch(input))
    {
      rx.setPattern("-?\\d{1,3}\\s60");
      if (rx.exactMatch(input))
      {
        int in = input.left(input.indexOf(" ")).toInt();
        int grad =  input.startsWith("-") ? in - 1 : in + 1;
        if (grad <= 180)
          input = QString::number(grad);

        return Acceptable;
      }

      rx.setPattern("-?\\d{1,3}\\s\\d{1,2}\\s60");
      if (rx.exactMatch(input))
      {
        int min = input.split(" ").at(1).toInt() + 1;
        if (min <= 60)
          input = input.left(input.indexOf(" ")) + " " + QString::number(min);

        return Acceptable;
      }

      if (input.at(input.size() - 1) == ' ')
        return Intermediate;

      int pos = input.lastIndexOf(' ');
      QString valStr = input.mid(pos + 1, input.size() - 1);
      int val = valStr.toInt();
      if (val <= 60)
        return Acceptable;
      else
        return Invalid;
    }
    else
      return Invalid;
  }

  return Invalid;
}